<!-- 引入公共样式 css / js -->
<link rel="stylesheet" href="/bootstrap/css/bootstrap.min.css">
<script src="/bootstrap/js/jquery-1.11.3.js"></script>
<script src="/bootstrap/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://v3.bootcss.com/assets/css/docs.min.css">
<meta name="referrer" content="no-referrer" /> <!-- 图片404 -->
<style>
    body {
        padding-top: 50px;
    }
</style>